mslife617 mslife617
  • 19-03-2024
  • Mathematics
contestada

If sum of n terms of an A.P. is given by Sn=a+bn+cn² where a, b, c are independent of n, then-

A. Common difference of A.P. must be 2
B. All above
C. a=0
D. Common difference of A.P . must be 2c.

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